Question

Which of the following lists of data has the smallest standard deviation?
Select the correct answer below:

30, 32, 36, 30, 23, 35, 30, 37, 28, 23

21, 22, 12, 11, 7, 13, 14, 17, 8, 9

24, 31, 32, 31, 23, 26, 22, 33, 23, 19

34, 31, 20, 30, 32, 27, 27, 20, 25, 28

15, 14, 15, 15, 15, 17, 15, 15, 15, 15

Answer 1

Comparing the standard deviations, we find that the fifth list (15, 14, 15, 15, 15, 17, 15, 15, 15, 15) has the smallest standard deviation of 0. Therefore, the correct answer is:

15, 14, 15, 15, 15, 17, 15, 15, 15, 15